Improvement in caps or covers for closing gas-retorts



J'. BALMORE.

CAPS OR CDVERS FOR CLOSING GAS RETURTS. No'. 180,104.i .A Patented 311157125, 187B.

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NPETERS. PHOTO-LITHUGRFHER, WASHINGTON, D. C.

UNITED JOHN BALMORE, or NEW YORK, N. Y.

IMPROVEMENT IN cAP-s Aoncoviaas Fon'cro-sine. GAs-RE'ToR-rs.

Specification forming part of Letters Patent No. lS0,l 04, dated July 25, 1876; applicationrled January 12, 1876.'

To all whom it may concern:

Be it known that I, JOHN BALMORE, gasengineer, of No. 2,084 Third Avenue, New York city, (Harlenm) in the countyA of New York and State of New York, have invented certain new and useful Improvements in Caps j or Covers for Closing Gas-Retorts 5 and I do hereby declare that the followin g is a full, clear,

-to provide a means for covering and closing quickly and hermetically the mouths of vessels or retorts, more especially gas-retorts, without the use of luting; and it consists of an iron disk or frame, with an opening in it to conform to the size and shape ofthe mouth of the retort, and provided at its back with angular embracing lianges or lugs, perforated and threaded to receive set-screws. These anges or lugs are so placed that they 'will embrace the flange or rim of the .retort-mouth, and bring the opening in the disk exactly opposite the retort-mouth, so as to make a flush joint. The set screws easily and firmly fasten it to the mouth-piece. It also consists of the frame or disk, provided with a circular projecting rim or lip, the inner edge of which is a right angle, andthe outer edge'of which is sloped or beveled, so that the front is narrower than the back, in combination with the cover having a rigid right-angle shearing-rim.

Attached to the frame by suitable hinges is a cap or cover and a Cotter-bar. 1 rIhis cap or coveris of circular form toV conform to the. frame, and is provided with a projecting lip or rim. rIfhe internal circumference of this rim is turned at a right angle, and is of such size that when it is closed the angle of this rim shall come in contact with thebeveled side of the projecting lip ofthe frame like a pair of shears. Pressure being applied to the cover, in the usual manner, the lid linds its bearing, and a gas-tight joint is formed.

' In the accompanying drawing, Figure lis a vertical section ot' my apparatus. Eig. 2 is a front View. Fig. 3 shows the beveled edges of the lip of the frame. Fig. 4' shows the right-angle edge of the cap or cover. is a rear view of the frame attachedV to the retort-mouth.

A is the month-piece of retort; a, the lip 01 projection. B is the circular frame. b are the lugs or ears sliding over the lip a., and fastened to it by set-screws al. Gis the cap or cover. c shows the inner right-angle edge of the rim ofthe cover. fshows the beveled edge of the fra-me.

Heretofore the frames have always' been bolted to the mouth-piece; butin providing my disks or frames with anges or lugs to embrace the rim of the retort-mouth I can place them in position or remove them very quickly, and they will tit any retort of the size they are made for. By this method I obviate the necessity of drilling' the retort-mouths and frames to receive bolts, and of keeping each mouth-piece and frame together, caused by the fact. that no two were drilled'in exactly the same place. l

Heretofore the retort-lids intended to be lused Without luting tit into the frame and found'their seat or bearing on the inner side of the rim or lip. In practice, I have found this mode attended with great disadvantage. In charging the'retorts With shovels or scoops, the inner edge is often struck, which de'nts or fractures it. rim becomes chokedwith hard tar and cokedust. Either Vor both these evils prevent the lid from making a tightjoint; but by having the bearing-edge outsidev the rim, and that rim beveled or sloped, it is protected from contact with the tools and deposit; but should `any tar ordeposit tind its Way there, the an gle ot' the rim of the cover, on coming in contact with the sloping side ot' the lip, would act like a pair of shears and pare it' off. It would not pack it.

Having described my invention, what` I desire to claim is- 1. A frame to receive and support a retort cap or cover, provided with angular lugs, formed to embrace the lianges on the mouthpiece, whereby it may be att-ached thereto, as shown and described.

2. A fra-me for supporting the retort cap or `cover,'having a lip with its outer surface bev- Again, the inner edge ofthe eled, in combination with the cover `having a, rigid right-angled shearing-rim, so that when the cover is closed the angle of the rim sb'ztll find its bem-ing' on the sloping side ofthe lip, as described.

3. A framerfor supporting @retort cap or coverz provided with embracinglugs to sevure it to the mouthpieee, and with :t lip having its outer surface beveled, in eombinat-ionwwith n cap or cover, provided with a rim having its inner edge at at right angle, 'so that when the cover is elosed the'angle of the rim shall find its bearing on the sloping side of the lip, as described.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses. L

JOHN BALMORE'.

Witnesses:

WILLIAM F. INGOLDSBY, E. RPIQUET. 

